Loose-leaf binder



May 11 ,1926.v 1,583,848

H. C. MILLER LOOSE LEAF BINDER y originan Filed Octso. 1922 Y f ,L Jgd v 313 *26 z 'lgatented May 11, 1926.

. v-,UNiT-.ED A` sraiiis` PATENT oFricE.

HENRY c. MILLER-,or MILWAUKEE.; WISCONSIN. i

Loose-LEAF BINDER.I

original apriiciibn med timber-30,1922, seria1`N0. 597,971. Divided and th -r 10,1923.' seriaiiqaeeaozz.

'.This invention relates to certain new and j useful improvements in loose leaf binders and is a division of my application filed October 30, 1922, Serial No 597,971.

vThis invention has for a general object to provide a loose leaf binder lhaving scissor toggle or lazy tong means for coordinating the movements'of the binder' heads to clamp the leaves therebetween. i Y

It is another object of this invention to provide simplified means for connecting the movable heads of a loose leaf binder and maintaining the samein parallel relation at all times.` i l Y A further object of,v this invention resides inthe provision of scissortoggle or lazy tong means for connecting the binder heads of-a loose leaf booklet having means forV normally expanding thesame and means for securing the heads in any vposition of ad justinent against the expanding means.

And a still further object of this invention resides in the provision of a loose leaf booklet of the cliaracterdescribed having means capable of operation to instantly open or expand the binder heads thereof topermit free access to the leaflets secured therebetween. l

l/Vith the above and other objects in view which will appear as the description proceeds, my invention resides in the novel construction, combination and arrangement yof parts substantially as hereinafter described and more particularly defined by the ap` pended claims, it being understood that-such changes in the precise embodiment of the hereindisclosed invention may be made as come within the scope of the claims.

In the accompanying drawings, I have il lustrated one complete example of the physical embodiment of-my invention construct ed according to the best mode I have so far Figure k1 is a side view of a looseple'af binder embodyingmy invention;

Figure 2 is a view looking at the end thereof with the binder heads in partly opened or expanded position, parts thereof being broken away to more clearly illustrate details of construction, and

Figure 3 is a view taken through Figure 1 on substantially the plane of the line 3 3 and illustrating the binder heads in full expanded or open position.

Referring now more particularly to the accompanying drawing, inl which like` numei-als designate like parts throughout the several views, Y5 and 6 designate :upper .and lower binder heads, respectively, between which is clamped a bodyof'leaves 7 by meansof the mechanism to be hereinafter described.y Pivoted to lugs 8, adjacentthe ends of the heads, `are upper and lower covers 9 and 19, respectively, for `protecting the leaves-7. i f

is application filed September The binder heads are-connectedv a plu-' -i rality of posts 11, l preferably `formed of telescoping sections in yorder that the heads may be readily retracted or expanded, which pass through suitable openings, not shown,1 in the inner edges of the leaves7, as isl well known in the art. 4.Operati-vely connecting the binder heads is a scissor toggle or lazy tong device, comprising two` levers 12 and 13 which intersect and are centrally,

lpivotally connected bylapin 14,the ends of the levers -being `in turn pivotally con.- nected withptheadjacent binder I' heads, as hereinafter described. i

The upper and lower binder heads are provided with depending flanges 15 and 16,

respectively, and the upper or right end of lever 12, with reference to 'Figure 3, is pivotally connected with the adjacent end of the flange 15 by a pivot 17 carried by said flange and passed through an arcuate slot 18 in the adjacent end of the lever and the other end thereof is pivotally secured to the adjacent end of flange 16 by a pivot v19. The upper or left end of the lever 13,

with reference to Figure 3, is pivotally couiiected with the adjacent or left hand end of the flange 15 by` a pivot20 andk theother end thereof is connected with the adjacent rend of the flange 16 by a pivot 21 carried by the flange andpassed through an arcuate slot 22 in the lever.

With the adjacent or right hand ends of the levers 12 and 13, with reference toFigure 3, provided with shifting pivots, the shortening and lengthening of the distance bei ne tween the pivots 17 and 19, and 2O and 21,

incidental to the closing andopening of the binder heads, v is readily accommodated. The levers 12and 13 are normally yieldably urged to their expanded or full open pos-ition, illustrated in Figure 3, by one or more contractile springs 23, the ends of which are connected 'with the levers, as at 24.

flanges 1'5 f and With this construction, the normal tendency of the binder heads 5 and 6 is to separate and they are secured in any position ol adjustment, against the force kof thev springs Q3, by a pavvl adapted to engage the teeth of a rack 26 carried by fla-nge 16. Paivl 25 isfearried bythe short arm 2T of a1bell-crank lever 28 which is pivoted at its apex to flange 15, as at 29, and has the end 30 of its long ali-m31 extended to one side of theV binder head to permit itszready and` convenient actuation. PaWlfQ-is yieldably urgedto engagement With rack 26 by. a spring 32, one end of` which is secured to the arm 31 outwardly of pivot 29, as at 33, and the other end-off which is secured to an ear or lug 34k carried bythe flange l5, asJ at 35. Y K

Thescis'sor toggle or lazy tongmeans are entirely'concealedfrom View by overlapping end members 36 and 37, carriedv byY the 16 of the binder heads 5.and 6, respectively,l andgby end members v38 carried by one of the binding heads, as illustratedi iny the drawing and 37 passl one behindl the other when the binder headsare closed or retracted as illus-- trated inFigures l` andZ;

Nhen itis'desfired to'either add new sheets `or're-move any'of the.V sheets, the end 30 of the'lever'28l is moved-against the action or' spring 321and theY pavvl v25 disengagedlfromthe teethotthe ratchet member 26,- as aresult of'4 whichI the energy oflr springs 23 is The extensions 36 shape` of its` outer end and engaging behind the ratchetl teethl as Will. be readily? obvious.

`What I claim as my inventionIis': VA loose leaf binder,vcomprising. apair of binder heads,.means connecting the binder heads, meanstendingto normally urgeft'he` binder headsapart, a rac-k member. carried by one binder head, teeth-onr sa-id-rarli,member, a bellscrank lever, means pivotallyy connectingA the bell-crank leverat its apex' to saidother binder head, .saidfbelllerank lever having a long, arm with itsouter end adja-v cent one side of tlie binder and itsother end positioned adjacent said rack, and a pawl, formedv on saidl other endof saidibell.- crank. lever and adapted` toV selectivelyengage the; teeth off the rack to4 secure the binder head in any position of adjustment.

against said urging; means.

ture.

HENRY A C. MILLER. f

In testimony whereof:V Ii aixv my Signa-` 

